/*
 * Copyright (C) 2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.cloud.demo;

import java.util.function.Function;

import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.context.annotation.Bean;

/**
 * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
 */
@SpringBootApplication
@EnableBinding(Processor.class)
public class FunctionApplication {

	public static void main(String[] args) {
		new SpringApplicationBuilder(FunctionApplication.class)
				.web(WebApplicationType.NONE).run(args);
	}

	//@StreamListener(Processor.INPUT)
	//@SendTo(Processor.OUTPUT)
	//public String receive(String msg) {
	//	System.out.println("receive: " + msg);
	//	return msg.toUpperCase();
	//}

    @Bean
    public Function<String, String> uppercase() {
	    return x -> x.toUpperCase();
    }

    @Bean
    public Function<String, String> addprefix() {
        return x -> "alibaba-" + x;
    }

}
